head of the river cat hull thread

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  • pbleckert972
    Senior Member
    • Jul 2009
    • 119

    #256
    bought the artr this morning from hotr. looking to put 7xl or 8xl in it. just not sure what esc to get. i want be able to run up to 6s in it someday comfortably. any ideas?

    Comment

    • 785boats
      Wet Track Racing
      • Nov 2008
      • 3169

      #257
      Originally posted by Tony
      Paul,
      Which ESC are you running with the 8XL?
      Tony.
      The only ESCs I use these days are the HiModel GX 200A with BEC .
      There's a thread running about them on this forum.

      HiModel GX Seires 200A 4-8S Electric Speed Controller W/BEC Type GX-200A-BEC from manufacturer HiModel, in category Brushless Speed Control (BL ESC) - Air/ Helis, Electric Speed Control (ESC).


      Haven't blown one yet, but 4s & maybe 100A max in the cat is well within its limits.
      I'll be trying one on 6s with a 580/9L in the K7 Bluebird when I get that built, so that will be a bit more of a test for them.
      Cheers.
      Paul.
      See the danger. THEN DO IT ANYWAY!!!
      http://forums.offshoreelectrics.com/...hp?albumid=319
      http://forums.offshoreelectrics.com/...hp?albumid=320

      Comment

      • Tony
        Senior Member
        • Feb 2008
        • 413

        #258
        Paul,
        I'm setting up my H&M MARITMO with 6S2P , 580/10L, and SK /Turnigy 180 amp ESC. I was gonna set it up with a 580/9L, Etti 150, but was told too much rpm.... BTWm that Himodel 200 esc looks pretty good.

        Comment

        • FastVee
          Senior Member
          • Aug 2008
          • 649

          #259
          Did the c/f work. First time so it looks 70% ok

          (had to use my phone´s crappy cam, sorry)

          I did 2 layers on sponsons and one on everywhere else.

          And I hope that every 1 who has this hull would check this thread below and reply if yours is the same

          http://forums.offshoreelectrics.com/...ead.php?t=9812




          Pate
          www.youtube.com/rangerpate

          Comment

          • Tony
            Senior Member
            • Feb 2008
            • 413

            #260
            Pate,
            Nice job! Where did you get the C/F, and did you epoxy it to the hull?

            Comment

            • FastVee
              Senior Member
              • Aug 2008
              • 649

              #261
              I got it from Biltema (local automotive/boat/etc shop)

              I used laminating epoxy that is made for this.

              There is some pics on the "carbon fiber" -thread


              Just installed the rudder, now I need to know where to drill stuff tube hole and mount for motor....





              Pate




              edit.stuff tube installed. trying to glue motor mount later today, will be ready to test friday! (and after that the finishing touches will begin...and that will take a lot of time)

              edit#2 motor mount is in!

              This will be finished in so short time that I need to get another project to work on the whole cold winter...
              Attached Files
              Last edited by FastVee; 08-19-2009, 12:56 PM.
              www.youtube.com/rangerpate

              Comment

              • FastVee
                Senior Member
                • Aug 2008
                • 649

                #262
                Not too much to do anymore
                Attached Files
                www.youtube.com/rangerpate

                Comment

                • lomdel
                  Senior Member
                  • Nov 2008
                  • 708

                  #263
                  Originally posted by BIGDG357
                  thanks man those are the MHZ rams you told me about .THANKS
                  Can you link us to the specific MHZ rams that you used, please? Any alternatives?

                  Comment

                  • 785boats
                    Wet Track Racing
                    • Nov 2008
                    • 3169

                    #264
                    Tony.
                    The 580 9L is only 1426Kv. So on 6s it's 29,557rpm with no load. Factor in say a 15% load factor ( depending on prop) that's only around 25,000rpm.
                    I don't think that's too high. Possibly not high enough.
                    The 10L would be a couple of thousand revs lower than that.
                    I like to run smaller diameter, higher pitch props. The revs & speed seem to be up higher with lower current draw from what I've seen & experienced in other boats with other motors.
                    We'll have to wait & see with this one.
                    Cheers.
                    Paul.
                    See the danger. THEN DO IT ANYWAY!!!
                    http://forums.offshoreelectrics.com/...hp?albumid=319
                    http://forums.offshoreelectrics.com/...hp?albumid=320

                    Comment

                    • BIGDG357
                      Senior Member
                      • Mar 2009
                      • 243

                      #265
                      Originally posted by lomdel
                      Can you link us to the specific MHZ rams that you used, please? Any alternatives?
                      I have been looking for something like this for a while now, and actually bonewar posted the link to these a little earlier in the thread but here is the link http://206.206.85.209/xtdoc/Details....4&store=mhzusa your going to have to make these work they are a little to big for the transom on this boat and depending on your hardware the rams may be to long

                      Comment

                      • FastVee
                        Senior Member
                        • Aug 2008
                        • 649

                        #266
                        Any 1 tried this kind of cooling system?

                        brass tube

                        Coated the c/f witk 15min epoxy... soo shinyyyy




                        Pate
                        Attached Files
                        www.youtube.com/rangerpate

                        Comment

                        • Jeff Wohlt
                          Fast Electric Addict!
                          • Jan 2008
                          • 2716

                          #267
                          I have a couple boats where alum tubing is run all the way from the transom to the motor and ESC. Actually really like it that way...it is epoxied up under...no chances of kinks and all that and I get great water. I have a set of the KS tube bender springs and they work pretty well on the alum.
                          www.rcraceboat.com

                          [email protected]

                          Comment

                          • FastVee
                            Senior Member
                            • Aug 2008
                            • 649

                            #268
                            I cant find any aluminium tubing here, only alloy brakeline and it is too smal dia pipe... So I used brass.

                            Almost done! (only 3 batterystraps left to install...)



                            Pate
                            Attached Files
                            www.youtube.com/rangerpate

                            Comment

                            • FastVee
                              Senior Member
                              • Aug 2008
                              • 649

                              #269
                              Ok, the boat is ready to test drive tomorrow!

                              The xtra long motor sits really high, the lid does close(just), but the water jacket fittings must be on the sides I think that I may need to cut the mount off and make custom mount that allows mounting it lower.


                              This is my first cat and I dont know good basic settings to start fine tuning.

                              -strut level with or bit higher then sponsons?

                              -HiModel timing? -I heard that the Xl can could like the 7 setting on hm timing?

                              -what is the max prop you have used on this setup? (4s 200A 8XL) Prather s220 too much?

                              Anything else?



                              Pate
                              www.youtube.com/rangerpate

                              Comment

                              • ksm2001
                                Senior Member
                                • Jun 2007
                                • 377

                                #270
                                Looking forward to hear how the run goes 7 degrees should be fine but you might want to try it at 1 for the first few runs and check your temps. As for the prather 220 it might be a bit to much for the first run JMO since you'll notice alot more torque and rpm than the SV motor in your DF29. If you have a smaller prop try it first, you'll be able to work your way up once you have it trimmed out with the strut angle/height and CG.

                                Keep us posted, looking forward to it.
                                Ken
                                DF-29,Phil Thomas Super Sport 45, SV27, Xzess 2 Evo, HOTR 32" Cat

                                Comment

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